1// 2001-05-21 Benjamin Kosnik  <bkoz@redhat.com>
2
3// Copyright (C) 2001, 2002, 2003, 2009 Free Software Foundation, Inc.
4//
5// This file is part of the GNU ISO C++ Library.  This library is free
6// software; you can redistribute it and/or modify it under the
7// terms of the GNU General Public License as published by the
8// Free Software Foundation; either version 3, or (at your option)
9// any later version.
10
11// This library is distributed in the hope that it will be useful,
12// but WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14// GNU General Public License for more details.
15
16// You should have received a copy of the GNU General Public License along
17// with this library; see the file COPYING3.  If not see
18// <http://www.gnu.org/licenses/>.
19
20// 27.8.1.4 Overridden virtual functions
21
22// { dg-require-fileio "" }
23
24#include <fstream>
25#include <testsuite_hooks.h>
26
27class testbuf : public std::filebuf
28{
29public:
30
31  // Typedefs:
32  typedef std::filebuf base_type;
33  typedef base_type::traits_type traits_type;
34  typedef base_type::char_type char_type;
35
36  testbuf(): base_type()
37  { _M_mode = (std::ios_base::in | std::ios_base::out); }
38
39  bool
40  check_pointers()
41  {
42    bool test __attribute__((unused)) = true;
43    test = (this->pbase() == NULL);
44    test &= (this->pptr() == NULL);
45    return test;
46  }
47};
48
49const char name_01[] = "filebuf_virtuals-1.txt";
50
51// Test overloaded virtual functions.
52void test05()
53{
54  using namespace std;
55  typedef std::filebuf::int_type 	int_type;
56  typedef std::filebuf::traits_type 	traits_type;
57  typedef std::filebuf::pos_type 	pos_type;
58  typedef std::filebuf::off_type 	off_type;
59  typedef size_t 			size_type;
60
61  bool test __attribute__((unused)) = true;
62
63  {
64    testbuf 				f_tmp;
65
66    // setbuf
67    // pubsetbuf(char_type* s, streamsize n)
68    f_tmp.pubsetbuf(0,0);
69    VERIFY( f_tmp.check_pointers() );
70  }
71
72  {
73    testbuf 				f_tmp;
74
75    f_tmp.open(name_01, ios_base::out | ios_base::in);
76    f_tmp.sbumpc();
77
78    // setbuf
79    // pubsetbuf(char_type* s, streamsize n)
80    f_tmp.pubsetbuf(0, 0);
81    VERIFY( f_tmp.check_pointers() );
82  }
83}
84
85int main()
86{
87  test05();
88  return 0;
89}
90